2/3 c. sugar
1/4 c. Hershey's cocoa
3 tbsp. cornstarch
1/4 tsp. salt
2 1/4 c. milk
2 tbsp. butter
1 tsp. vanilla

Combine sugar, cocoa, cornstarch and salt in medium saucepan; gradually stir in milk. Cook over medium heat, stirring constantly, until mixture boils; boil and stir 1 minute. Remove from heat; blend in butter and vanilla. Pour into individual serving dishes. Carefully press plastic wrap onto surface. Chill. Garnish with whipped topping and chopped nuts, if desired. 4 or 5 servings.